* @copyright 2017 Jim Wigginton * @license http://www.opensource.org/licenses/mit-license.html MIT License * @link http://pear.php.net/package/Math_BigInteger */ namespace tgseclib\Math\BigInteger\Engines\BCMath; use tgseclib\Math\BigInteger\Engines\BCMath; /** * Built-In BCMath Modular Exponentiation Engine * * @package BCMath * @author Jim Wigginton * @access public */ abstract class BuiltIn extends BCMath { /** * Performs modular exponentiation. * * @param BCMath $x * @param BCMath $e * @param BCMath $n * @return BCMath */ protected static function powModHelper(BCMath $x, BCMath $e, BCMath $n) { $temp = new BCMath(); $temp->value = bcpowmod($x->value, $e->value, $n->value); return $x->normalize($temp); } }